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  • 1
    Electronic Resource
    Electronic Resource
    Ultralow-Dielectric-Constant foams by crystallisation from supercritical solution: Application to advanced electronic packaging (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Advanced Materials for Optics and Electronics 1 (1992), S. 249-253 
    Details
    ISSN: 1057-9257
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Accurate moulding of polymer foams of density 0.02-0.3 g cm-3 has been achieved by crystallising polyethylene and ethylene/methlacrylate copolymers from dry supercritical solutions. Adherent thick films can be sealed to electronic substrates and are proposed as insulating layers for interconnections on multichip modules and other high-speed electronic devices. The dielectric constant achieved for films of several-mil thickness is between 1.05 and 1.3 and can be tailored along with the physical properties of the film by adjusting the density and composition of the copolymer. Planarisation or complex patterning is possible by detailing the mould.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/amo.860010507
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  • 2
    Electronic Resource
    Electronic Resource
    Volumetric properties of supercritical ethanen-n-heptane mixtures: The isothermal compressibility in the critical region (1973)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 19 (1973), S. 540-546 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The isothermal compressibility (at constant composition x) kT,x, was calculated in the neighborhood of the critical locus for seven mixtures containing 3.5 to 19.6 mole % heptane and analyzed in terms of the reduced pressure variable σ = (P - P̂)/P̂ where P̂ is the pressure at which kT,x becomes very large. The data can be represented by the equation kT,x = const. σ-λ along the critical isotherm and one near it and by the locus P̂(T). λ was found to be a strong function of x. The divergence of the isothermal compressibility of the mixtures near the critical locus is in conflict with predictions from classical equations of state but in accordance with modern concepts of the critical region.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690190319
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  • 3
    Electronic Resource
    Electronic Resource
    Volumetric properties of supercritical ethane-n-heptane mixtures: Molar volumes and partial molar volumes (1973)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 19 (1973), S. 533-540 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Molar volumes were measured and partial molar volumes were calculated in the supercritical region, including the vicinity of the critical locus, lor compositions of 1.8 to 20 mole % n-heptane. Molar volumes can he represented, to a reasonable approximation, by the Flory-OrwollVrij (FOV) reduced equation of state. A better fit of the data is possible if the three exponents in the FOV equation are adjusted The irodified FOV equation or the Redlich-Kwong equation, with parameters idjusted to fit the critical locus, can in general represent the partial molar rolumcs adequately along the critical locus only. The prediction of the imposition-dependence of the partial molar volumes is only qualitatively successful at best.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690190318
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  • 4
    Electronic Resource
    Electronic Resource
    Computer model for tubular high-pressure polyethylene reactors (1976)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 22 (1976), S. 463-471 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A computer model was developed for tubular high-pressure polyethylene reactors. Plug flow and absence of axial mixing were assumed. Emphasis was placed on realistic modeling of the reaction kinetics and the variation of physical properties along the reaction coordinate. A good simulation of axial temperature profiles, conversion, molecular weights, molecular weight distribution, and transport properties along the reaction coordinate is believed to have been achieved. The model can be extended readily to cases where radial diffusion is significant.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690220308
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  • 5
    Electronic Resource
    Electronic Resource
    Über die Beeinflussung des Kristallwachstums von Salmiak durch Pektin (1931)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 203 (1931), S. 26-38 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19312030107
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  • 6
    Electronic Resource
    Electronic Resource
    Beiträge zur systematischen Verwandtschaftslehre. 74. Über die Sulfide des Iridiums (1937)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 233 (1937), S. 257-281 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19372330304
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  • 7
    Electronic Resource
    Electronic Resource
    Beiträge zur systematischen Verwandtschaftslehre. 75. Über die Sulfide des Titans (1937)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 234 (1937), S. 97-116 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19372340202
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  • 8
    Electronic Resource
    Electronic Resource
    Lösungen von Sauerstoff in metallischem Titan (1941)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 247 (1941), S. 53-64 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Titan kann Sauerstoff in fester Phase lösen; dabei ändern sich die Gitterkonstanten und damit das Molvolumen nur wenig. Während die c-Achse bis zur Phasengrenze bei der Zusammensetzung TiO0,42 regelmäßig um 1,8% anwächst, kommt die Änderung der a-Achse.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19412470106
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  • 9
    Electronic Resource
    Electronic Resource
    Magnetochemische Untersuchungen XLII. Über den Magnetismus der Halogenwasserstoffe (1942)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 249 (1942), S. 219-224 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Halogenwasserstoffe wurden magnetisch gemessen und auf Grund der gefundenen Suszeptibilitäten der Wert der verschiedenen Systeme diskutiert, die für den Diamagnetismus edelgasähnlicher Ionen aufgestellt sind.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19422490206
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  • 10
    Electronic Resource
    Electronic Resource
    Isotactic polypropylene foams crystallized from compressed propane solutions (1998)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 36 (1998), S. 617-627 
    Details
    ISSN: 0887-6266
    Keywords: isotactic polypropylene foams ; supercritical propane solutions ; high surface areas ; Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Crystallization of isotactic polypropylene (iPP) from homogeneous solution in supercritical propane yields open-cell foams of high surface area (120-150 m2/g). Their morphology usually consists of microspheres with a dense core and a porous periphery of radiating fibrils. Pore radii covering the mesopore range (2-50 nm), making their largest contribution at 10-20 nm, were calculated from nitrogen adsorption isotherms. Surface areas of the correct order of magnitude are obtained by assuming that gas adsorption takes place on the surfaces of lamellar crystals. Crystallization of iPP from n-butane and n-heptane generates foams of lower mesoporosity and smaller surface area. These more “liquid-like” solvents do not allow the formation of an open network of mesopores or they promote its collapse upon their removal. © 1998 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 36: 617-627, 1998
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
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